NRTM with RIPE db on debian

Hi all,
I'm trying to set up mirror of the RIPE - it works fine as I can send
queries to my local ripe installation, but I failed to get the NRTM
functionality.
I've downloaded the ripe.db.gz and the import with the make_db.sh
script was successful.
I did some changes to the sample configuration files and the query to
my local host returns results from the database.
First question - is the NRTM functionality built in the ripe db
installtion and configured inside the sources.config file or is it
necessary to start another tool which does the updating process?
The IP of the local server is registered and with the telnet example
in the documentation I receive results of changed records.
I'm running version 3.5.2 on debian lenny.
When I start the whois server the output in the log is
090715 10:37:25 whois-server started
090715 10:37:25 /home/baseworks/projects/whoisserver/bin/whois-server -
p /home/baseworks/projects/whoisserver/bin/whois_rip.pid -c /home/
baseworks/projects/whoisserver/conf/rip.config.baseworks
Configuration [/home/baseworks/projects/whoisserver/conf/
rip.config.baseworks]:
Whois port: 43001
Config port: 43002
Mirror port: 43003
*Running* as root, dropping privileges:
Gid: 1000 Egid: 1000 Uid: 1000 Euid: 1000 .
Check the DB
Checking the Database [RIPE]...[OK]
STATUS: The Database is clean
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Loading the radix trees... done.
Source [SRCRIPE] Mode STATIC
I think the problem is that the mode is STATIC and *not* NRTM. I
changed the opMode value in the sources.config file to all values
which were given in the comment lines but nothing changes - on every
start I get STATIC as mode.
In the sources.config file I've made the definition for my database
with a nrtm entry and the sources definition which was used for the
import of the downloaded ripe.db snapshot.
In my sources.config file the current settings are:
DATABASE RIPE
host: localhost
port: 3306
trx_support: n
user: xxxx
password: xxxx
/DATABASE
NRTM RIPEMIRROR
host: whois.ripe.net
port: 4444
delay: 60
protocolVersion: 1
/NRTM
SOURCE SRCRIPE
database: RIPE
opMode: 4
updPort: 43004
canupd: y
deflook: y
nrtm: RIPEMIRROR
/SOURCE
May anyone give me a hint where I'm wrong or what is missing?
TIA
kind regards,
Dietmar